Major security alert at Westminster after at least one person was shot after police officer was stabbed outside House of Commons in London. Alleged assailant shot by police in attack. ‘Several injured’ in related incident on Westminster Bridge. Police confirm incident is being treated as terrorist attack.
The Guardian: Man shot after police officer stabbed in London (Live Updates)
People leave after being evacuated from the Houses of Parliament in central London on March 22 during an emergency incident. Britain's Houses of Parliament were in lockdown on March 22 after staff said they heard shots fired, triggering a security alert.
